Incubator.



F. S. BARZEE.

INGUBATOR.

APPLIGATION FILED SEPT. 12, 1907.

Patented sept.21,1909.

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F. S. BARZBE.

INGUBATOR.

APPLICATION FILED SBPT.12, 1907.

Patented Sept. 2 1, 1909.

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Speecation of Letters Patent.

Patented Sept. 21, 1999.

Application filed September 12, 1907. Serial No. 392,550.

To all whom it lmay concern:

Be it known that l, FRANCIS S. BARZEE, a citizen of the United States,residing at Everethin the county of Snohomish, State of 1Washington,have invented certain new and useful Improvements in Incubators; and ldo hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

rl"'his invention relates to new and useful improvements in incubatorsand in its broad conception7 comprises a tank for circulating hot waterand disposed in proximity to the egg tray and an air chamber surroundingthe tank and opening into the interior of the brooder.

ln connection with a brooder of the above general type the inventionaims as a primary object to provide a novel Ventilating system,automatic in its action whereby an adequate supply of warm fresh air andevenness of temperature is assured.

The invention aims as a further object to provide a novel construction,combination and arrangement of parts the details of which will appear inthe course of the following description, in which reference is had tothe accompanying` drawings forming a part of this specification, likecharacters of reference designating similar parts throughout the severalviews wherein- Figure 1 is a front elevation of an incubator constructedin accordance with the present invention. Fig. 2 is a centrallongitudinal vert'cal section thereof. Fig. 3 is a horizontal sectionthereof illustrating the construction of the water tank and the relationof the supply and drainage pipe. Fig. eL. is a vertical section takencentrally at right angles to Fig. 2.

In the accompanying drawings the numeral 5 designates the supportinglegs and the numeral 6 designates generally the broeder supportedthereon. The latter comprises a box formed with a bottom 7 and verticalouter wall sections 8, uponwhich is supported the top wall or lid 9.Imposed upon the bottom 7 are central wall sections 10 of less depththan the outer sections and disposed in similar arrangement but inspaced parallel relation. The sections 10 support at their upper ends ametallic top plate 11 and a dead air chamber 12, packed with heatinsulating material 13 occurs con- Ijointly between the several wallsections 8 and 10 and the top plate 11 and the top or lid 9. A thirdinner series of wall sections 14 are supported upon the bottom 7 withinthe contines of the sections 10. The sections 14- are of less depth thanthe sections 10 and are arranged similarly thereto in spaced parallelrelation. The spaced relation between the various sections 8, 10 and 14is maintained by cleats 15 imposed upon the bottom 7 and arrangedbetween the several series of wall sections. Hthin the confines of thesections lit are parallel cleats 16 which support a floor 17 spaced awayfrom the bottom 10, heat insulating packing 18 being interposed betweenthe bottom 17 and the floor 7.

The front wall sections of the various series above described aresuitably constructed with registering op-enings to permit of theinsertion and replacement of an upper egg tray 19 and a lower nurserydrawer 20 having front panels 21 and 22 of glass. The side sections 14%.are of course constructed to support the tray 19 and drawer 20. lThetray 19 is formed in its bottom with openings 19a through which aircirculates to the nursery drawer 20. Said tray 19 is arranged below theupper edges of the sections 14e, in order that the latter may support inspaced relation to said tray, a water tank 23, the vertical walls ofwhich form substantial continuations of the sections 14 and in suchrelation, together with said sections, coact with the sections 10 andthe top plate 11 to afford a continuous warm air circulating chamber 24.provided with draft openings 25, equipped with suitable ventilatingclosures 26, the openings being formed in the rear wall sections 8 and10. The sections 14e likewise support slightly below the tank 23 andspaced therefrom, a distributing plate 23a having a central draftopening 23h. The chamber 24 coniniunicates with the space 27 occurringbetween the tray 19 and the tank 23 by means of openings 28 formed inthe sections 14.-. An open ended ventilator pipe 29 passes centrallythrough the tank 23, the top plate 11 and the top or lid 9, the pipe 29registering with the opening 23b and communicating by means of saidopening with the chamber 27. The projecting upper of the pipe 29 isclosed by a damper plate 30 carried by the thermostatic arm 31, thelatter being mounted upon a bracket 32, supported on the top or lid 9.

end

Water is fed into the tanli 23 from LPlmP or elevated source of supplyby means of a ne'ction by niea'i'is of a Ty union 37 with lati erallyextending* pipes 358 similarin arrangement to the pipes A moisture pan39, surrounding the pipe 29 is imposed upon the top' of the tank'28 and'a feed tube or pipe L10 leads into thel said pan. The latter is designedto' contain Water for" thefpurp'ose' of st i'ppl'yii'ig moisture to theheated circulating air.

In use, when the temperature rises above a predetermined limit the plate30 rises and air entering through the openings Q5, circu' lates throughthe chamber 9A, passing through thek openings 2S and chamber 27, ont,together with' poisonous gases', through the pipe 29. The ventilationlis thus automatic and the hot Water, continuously circulating' throughthe' tank assures of the evenness of the tem'peraturei AInasmuch as theWater@enters'adj'acen't,the bottom at one side o'f the tank anddischarges from points adjacent the bottoni at the opposite side of saidtank', the discharging Water be! 'lng cooler than the enteringWater-,the heat will rise and hence the air 1n the upper" part of thechamber' 24' is Warmer than the air inthe chamber 27, the air descendingv and passing into saidA chamber being moditied by the cool air enteringthrough the openings 25.

The invention is simple "in its structure v and details, inexpensive tomanufacture andv practical and elicient in use.

From the foregoing" description it Will be seen that simple andetlicient means are provided vfor accomplishing the advantages of the'invention but,l While the achievements l1`erei`n`- shown and describedare Well adapted to serve the functions set forth it is obvious that anyminor cl'i'anges may be' made in the proportion, shape and' arrangementof the several parts Without departing` from the scope' of thei1'rvention as designated in the appended claim;

W'hat is claimed is In an incubator, a casing, vertical wallsrising frombottom of said casing' and removed distance from thesidesof thelatter,andj containing opposed openings, a Water tank mounted upon saidvert-ical Walls, andr

